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Electron beam modification method for reducing rolling resistance of tire tread rubber material and improving abrasion resistance

A tire tread and rolling resistance technology, applied in the field of electron beam modification, can solve the problems such as the degree of chemical pre-vulcanization is not clearly stated and difficult, and achieve rolling resistance reduction, accurate surface modification degree, and control surface modification degree Effect

Active Publication Date: 2015-05-13
BEIJING UNIV OF CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The patent does not clearly state the degree of chemical pre-vulcanization, and the most important thing is how to effectively bond the tread produced by this process with the skeleton material (ply layer), which is difficult in practical application

Method used

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  • Electron beam modification method for reducing rolling resistance of tire tread rubber material and improving abrasion resistance
  • Electron beam modification method for reducing rolling resistance of tire tread rubber material and improving abrasion resistance

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] The formula of the tread rubber in this example is: natural rubber 70phr, styrene-butadiene rubber 30phr, zinc oxide 3phr, stearic acid 3phr, anti-aging agent 4010NA2phr, anti-aging agent RD2phr, solid paraffin 1.5phr, carbon black (N330) 50phr, promote Agent CZ1.1phr, accelerator D0.3phr, sulfur 0.5.

[0023] The tire tread rubber vulcanizate is placed on the conveyor belt, and the conveyor belt passes through the scanning window of the electron beam accelerator installed in the irradiation chamber to complete the irradiation of the vulcanizate. When the vulcanizate passes under the scanning window of the electron accelerator, the irradiation temperature is 30°C, normal pressure, air atmosphere, the number of irradiations is 5 times, the accelerating voltage is 5MeV, the beam intensity is 30mA, and the irradiation dose is 100kGy. The speed is 80m / min. Various performance tests were carried out according to national standards. The physical and mechanical performance pa...

Embodiment 2

[0025] The formula of the tread rubber in this example is: natural rubber 70phr, styrene-butadiene rubber 30phr, zinc oxide 3phr, stearic acid 3phr, anti-aging agent 4010NA2phr, anti-aging agent RD2phr, solid paraffin 1.5phr, carbon black (N330) 50phr, promote Agent CZ1.1phr, accelerator D0.3phr, sulfur 0.5.

[0026] The tire tread rubber vulcanizate is placed on the conveyor belt, and the conveyor belt passes through the scanning window of the electron beam accelerator installed in the irradiation chamber to complete the irradiation of the vulcanizate. When the vulcanizate passes under the scanning window of the electron accelerator, the irradiation temperature is -10°C, normal pressure, air atmosphere, the number of irradiations is 100 times, the accelerating voltage is 2MeV, the beam intensity is 100mA, and the irradiation dose is 600kGy. The passing speed is 200m / min. Various performance tests were carried out according to national standards. The physical and mechanical p...

Embodiment 3

[0028] The formula of the tread rubber in this example is: natural rubber 70phr, styrene-butadiene rubber 30phr, zinc oxide 3phr, stearic acid 3phr, anti-aging agent 4010NA2phr, anti-aging agent RD2phr, solid paraffin 1.5phr, carbon black (N330) 50phr, promote Agent CZ1.1phr, accelerator D0.3phr, sulfur 0.5.

[0029] The tire tread rubber vulcanizate is placed on the conveyor belt, and the conveyor belt passes through the scanning window of the electron beam accelerator installed in the irradiation chamber to complete the irradiation of the vulcanizate. When the vulcanizate passes under the scanning window of the electron accelerator, the irradiation temperature is 100°C, normal pressure, nitrogen atmosphere, the number of irradiation is 1 time, the accelerating voltage is 1MeV, the beam intensity is 0.001mA, and the irradiation dose is 0.001kGy , The passing speed is 0.001m / min. Various performance tests were carried out according to national standards. The physical and mech...

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Abstract

The invention relates to an electron beam modification method for reducing rolling resistance of a tire tread rubber material and improving abrasion resistance. The method comprises the steps of placing tire tread vulcanized rubber on a conveyor belt, and conducting irradiation modification on the vulcanized rubber through a scanning window of an electron beam accelerator mounted in an irradiation room. A cross-linking network of a rubber composite is improved, the interaction between the rubber and a filler is improved, the rolling resistance is reduced, and the abrasion resistance is improved. With the simple and effective electron beam irradiation method, the rolling resistance of a tread is reduced, the abrasion resistance is improved, and a novel technological approach is provided for surface modification of a finished tire.

Description

technical field [0001] The invention relates to the technical field of manufacturing rubber composite materials, in particular to an electron beam modification method for reducing rolling resistance of tire tread rubber materials and improving wear resistance. Background technique [0002] An ideal tire tread rubber material should have low rolling resistance, high wear resistance and good wet skid resistance, but these three properties interact and restrict each other, and it is difficult to achieve a balanced optimization among the three. The "Devil's Triangle" for tire performance. [0003] The traditional modification method is to adjust the formula of tread rubber composite materials, such as developing and applying new fillers and designing new rubber raw materials. The method of carbon black filling can give the tread rubber better wear resistance, but often the rolling resistance is high; the filling method of silica modified by the coupling agent can reduce the rol...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08J3/28C08L7/00C08L9/06C08K13/02C08K3/22C08K5/09C08K3/04C08K3/06
Inventor 刘力申晶张立群杨裕生温世鹏张法忠
Owner BEIJING UNIV OF CHEM TECH
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